Sources in both AIADMK and DMK confirmed that Rajathi Ammal visited the hospital last night and enquired about the health of Jayalalithaa, who has been under treatment there for infection since 22 September.

File photo of Jayalalithaa. AFP

Her visit comes days after her son, DMK Treasurer MK Stalin, called on doctors at the hospital.

While DMK sources confirmed that she met Jayalalithaa's aide Sasikala in the hospital and enquired about the health of the Chief Minister, AIADMK sources declined to comment on the meeting.

DMK sources said Rajathi Ammal took the concurrence of Karunanidhi before she went to the hospital to enquire about the health of Jayalalithaa.

Her unannounced visit came to light only today.

Meanwhile, former Tamil Nadu governor K Rosaiah on Saturday visited the hospital and enquired about the health of Jayalalitaa.

Rosaiah, whose term as the state governor ended recently, said he prayed the almighty for the speedy recovery of Jayalalithaa.

Ever since Jayalalithaa was hospitalised last month, the hospital has received a steady stream of VVIP visitors including Union Ministers and leaders of political parties besides the all-time presence of AIADMK leaders.